Engine-starter.



w. L. MCGRATH.

ENGINE STARTER.

APPLICATION FILED OCT. 29. |917.

1,288,088 Patented Dee. 17,1918.

3 SHEETS-SHEET I.

W. L. MCGRTH.

ENGINE STARTER.

APPLICATION FILED ocT. 29. |911.

Patented Dec. 17, 1918..

3 SHEETS-SHEET 2.

W.V L. MCGRATH.

l ENGINE STARTER. APPLICATION man ocT.29.1911.

pgS/@D Patented Deo. 17, 19l8.

3 SHEETS-SHEET 3! tor and a'generator.

Leganes.

WILLIAM L. M'CGRATH, or Elimina, COMPANY, or ELMIRA, NEW

NEW YORK, ASSIGNOR TOECLIPSE MACHINE YORK, A CORPORATION 0F NEW YORK.

ENGINE-STARTER.

Specication of Letters Patent.

Patented Dec. 1'?, 1918.

Application led October 29, 1917. Serial No. 198,978.

To all whom t may concern:

Be it know-n that I, WILLIAM L. MCGRATH, Y

a citizen of the United States, residing at Elmira, in the county of Chemung and State of New York, have invented certain new and useful Improvements in Engine-Starters, of which the following is a specification.

My invention relates to engine Starters and the object thereof is to provide a simple, efficient and reliable construction of starter capable of working in connection with either a starting motor alone or both a starting mo- My starter is also so constructed and designed as to be readily applied to internal combustion engines 0f standard manufacture or` those now eXtensively in use.

ln the drawings Figure 1 is a front elevation of my engine starter shown applied to.

an automobile engine or motor; Fig. 2 an elevation of the starter itself with a portion of the engine frame in section; Fig. 3 a longitudinal section of the starter; Fig. 4 a cross section on the line 4-1 of Fig. 3; Fig. 5 a cross section on a section line in Fig. 3 looking inl the direction of the arrows 5-5; Fig. 6 a section taken on the Same section line of Fig. 3 but looking in the direction of the arrows G-Gg and Fig. 7 an elevation of the driven wheel.

Referring to the embodiment of my invention as herein shown my starter is applied directly to the crank shaft A of the engine or motor, although it will be understood that it may be applied to or connectedl with any other rotatable member of or connected with s uch engine or motor. I have also shown as retained in this construction the usual hand starting crank B having the usual clutch jaw b adapted to be operatively connected with the crank shaft in the manner hereinafter described. Y

As herein shown there is mounted upon a suitable supporting member such as lthe` front plate C of theengine, a anged plate forming an outstanding or forwardly projecting bearing 1 Aon whichA is mounted the driving wheel. Thisplate or bearing is secured to the plate C in any suitable manner asby means of the screws 2.

The driving wheel is herein the form of a Vsprocket wheel which may be made integral with its hub portion or may be made in two separate parts as shown. that is,- the 'wheel proper 3 and a hub portion 4', such 'parts Vvbeing secured together in suitable manner as by means'of the screws 5. The forward end of this hub has a marginal flange 6 whose outer face is provided with clutch means such as the inclined clutch jaws 7.

The driving wheel is mounted on and concentric of the bearing and is capable of both a rotary movement thereon and a longitudinal or axial movement thereof. Means are provided for automatically moving or shifting this driving wheel and its clutch means laterally toward the right in Fig. 3. Such means consists of the pin 8 mounted in and movable radially through the hub 4 and into cooperation in the bearing 1. There 1s one continuous peripheral groove 9 and parallel therewith a series of interrupted peripheral grooves 10 connecting with the peripheral groove 9 by inclined or cross grooves 1].. The pin is held with a yielding tion with these grooves in any suitable manner as by means of the flat spring 12 secured at one end to the hub b v means of the stud '13 and bearing at its other free end uponthe pin. In the normal the driving wheel the pin 8 is'located in one of the grooves 10, but when'such wheel is rotated such pin will cause a lateral shifting of the wheel to the right, Fig. 3, inasmuch as it will travel through one of the cross grooves 11 and into the continuous peripheral groove 9. As a result of this action the driving wheel will be brought into driving connection with the engine or motor in the manner about to be described.

Upon the end of the shaft there is secured a sleeve 14 by means of the cross pin- 15. This sleeve extends forwardly of the crank shaft and through it passes the larve pin 16 heid in piace by the Smau pins f7. This large pin also passes through the driven wheel 18 which, inthe present instance` is a pulley wheel, thereby securing such driven wheel to the sleeve 14. This large pin is also adapted to be engaged by the clutch jaws ofthe hand crank.

Mountedconcentrically of the sleeve 14 is anothersleeve 19 having diametricallv opposite. end slots 19a adapted to receive the pin 15` `which bottoms in the inner end of such slots. This sleeve'19 is provided at its outer end with the marginal flange 20 with a series of grooves pressure into coperastationary position of loo ' mentary 'formed or elle peculiar slia'pe and arrange- 'inenc sliovvn in order to provide a very vcorni)acr and self-contained construction.

yielding means suoli as a FVliisdriven Wheel or pulley is practically a ring vvliicli is in elle shape of a il in cross seccion, 'die longer limb liereoiv ormine; elle pulley -`face and overhanging said clutch aivs, lne clntcli jaws 7 moving inwardly vvicliin suoli pulley for engagement Willi 1die clutch avvs 2l. other or sliorier limb of tliis pulley may bear agains; die oner face orn ille flange 2G lo liold elle sleeve 19 in place lagainsr pin l5, but by preference series ci" coiled springs 25 are interposed between said pares 18 and 2O for tnalc purpose.

llescribing elle operation oi my scarizer and srartingr vvitli Aelle par-ls in lie posicion shown in Fig. 3, rota-bien of ilie driving; vvlieel 3 will anloinatically canse a sliiiabinr; of suoli vvlieel and its cln'acn g'avv 7 lo ille right inio engagemenl` ivicli ilie other clnccli javvs 2l, The power of 'die driving1 v/lieel Will non7 be 'transmisied through the dange 20, sleeve i9 and pin l5 ro lie crank shall; A, or oizlrer rotatable pari; of che engine or some associated parl as maybe the case. T'ilflien the engine llas slarled on ics ovvn power 'die excess speed olf' relacio-n will canse a retracting movement of elle driving vvlieel by reason of llie inclined :aces oi*a the clugcli jaws, in vvliicli moveinenf; 'ille ein 8 Will move through one oi tbe cross slots ll or jump direci'gly across vfrom die 1groove 9 to one oi ille grooves l0, ille rounded lower end oil suoli nin so nermiszing.

i lio driving vvlieel is adapted. 'ro *be driven by any sniralole prime mover such as an elec- 'ric motor 22, and ilie pulley or driven Wlieel is adapted to be connecied by a bel to a Jfan 23 or generaror 24C, or bolli. le is obvious that vvlien *die engine is running on iis ovm povver alie driven vvlieel Will be driven by *die crank snail 'lirongli die pin l5, sleeve lll, and large 'ein i6.

.rllie interlocking of die pulley i8 and die clutch member 20 is not essencial in 'die struclnre as illnslra'red in the drawings, out may be employed as a drivingz means eielier vvirn die pulley driving means sliovvn or as a subslituce iliereior. as, for instance', in case 'elle ein l5 is utilized as a driving; means for J".ie "cnlley or for nnand cranlrinn cnrnoses, in vvliicli evene sncli `ein would be ein- Tployegl to keep '.fne pulley and also sleeve -sleeve arranged Wicliin and 19 in proper po :cion longicudinally. The slor 19a in 'i-nis sleeve is provided more 'can laicularly for convenience in manufacturing and assembling of the parts and obvionsl lioles hfor elle pin l5 would be suiciem, and any means lor driving elle pulley or for holding it stationarily against longitudinal movement might therefore be employed.

.l claim:

l. ln combination with a rota-table member or the engine to be started, a sialionary cylindrical bearing, ed Jdiereon for rotary and lateral axial movemens and having a clutch "face, and a concentric o *elle bearing,a and secured lo said member, snob sleeve having a complemenary clncli lace portion.

2. ln combination vvifrli a rotatable merriber ci ille engine to be started, a sacionary cylindrical bearing, a driving Wheel monnied thereon for rotary and laieral axial movements and having a clutch face, a sleeve arranged ivi'lzliin and concentric of elle bearing and secured lo said member, such sleeve liaving a complementary clutcli face portion and a driven Wheel connecred Willi vlie engine member and surrounding' the clulzcli porlion ci? line sleeve.

3. ln combination Willi a roalable ineinber or ilie engine lo be starred, a staionary cylindrical bearing, a driving vvlieel mourired liereon for rotary and lateral axial move' inenls and leaving a cliv'ccli race, and a sleeve arranged vviiliin and concentric of bearing; and secured to said member, suoli sleeve liaving,f a complementary clutch Jface Dertien, a second sleeve arranged -vvieliin alle iirs sleeve and extending forwardly or suoli member, and a driven Wlieel secured lo suoli en'cended end of the sleeve.

e. ln combination Willi a rolaeable ineinber or the engine lo be sarted, a stationary cylindrical bearing, a driving Wheel monnied 1cliereon lor rotary and lateral axial movements and having a clutch face, and a sleeve arranged ivitliin and concentric or' tlie bearing and secured to said member, suoli sleeve liavingr a complemencary clutch face portion, a second sleeve arranged vvizliin line irst sleeve and extending forwardly or suoli member, a driven Wheel concentric of such en- Jended end of the sleeve, and a pin passing transverselj through such end of the sleeve and at its ends carrying alle driven vvlieel.

5. ln combina'cion Willi a rotatable meinu ber or Elie engine fio be started, a slalionary cylindrical bearing, a driving vllaeel morini:-A ed enereon for rotary and lateral axial movements and having a clutch ce, and a sleeve arranged Within and concenfvric or ll'ie bearing and secured `lo said member, suoli sleeve having; a 'complemenrary cluecli face porfgion, a second sleeve arranged Wivliin elle irsi sleeve and `^ler'if-endiine; forwardly o sncli ya driving Wlieel monnalil-0 overhanging said 1 extended end of member, a driven Wheel concentric of such the sleeve and made in the form of va J-shaped ring, and a pin passing transversely through said sleeve and both limbs of the ring, the longer limb thereof clutch faces.

6. In combination with a rotatable member of the engine to be started, a stationary cylindrical bearing, a driving Wheel mounted thereon for rotary and lateral axial movements and having a clutch face, and a sleeve arranged Within and concentric of thebearing and secured to said member, such sleeve having a complementary clutch face portion, a second sleeve arranged Within the rst sleeve and extending forwardly of'such member, a driven Wheel concentric of such extended end of the sleeve and made in the form of a J-shaped ring, and a pin passing transversely through saidsleeve and both limbs of the ring, the longer limb thereof overhanging saidl clutch faces, and the end of the shorter limbbearing against the back of the clutch face portion of the sleeve.

7 In combination with a rota-table member of the engine to be started, a stationary cylindrical bearing, a driving Wheel mounted thereon for rotary and lateral axial movements, said Wheel having a hub provided with a clutch face, a sleeve arranged Within and concentric of the bearing and secured to said member, said sleeve having av circumferential flange provided with a complementary clutch face'in the path of movement of the other clutch face, and a driven Wheel operatively connected With said member.

8.` In combina-tion with a rotatable member of the engine to be started, a stationary cylindrical bearing, a driving Wheel mounted thereon for rotary and lateral axial movements, said Wheel having a hub provided with a clutch face, a sleeve arranged Within and concentric of the bearing and secured, to said member, said sleeve having a circumferential flange provided With a complementaryl clutch face in the 'path of movement ol'- the other clutch face, and a driven Wheel opi eratively connected .with said member and having its periphery overhanging said clutch faces.

9. 'in combination With a rotatable member of the engine to be started, a stationary cylindrical bearing, a driving Wheel mounted the `eon for rotary and lateral axial move- 'ments and having a clutch face, and a sleeve arranged Within and concentric of the bearing and secured to said member, such sleeve having a complementaryfclutch face portion, and means for automatically moving the driving Wheel laterally comprising a yielding pin mounted on such driving Wheel, said bearing having circumferential and inclined' grooves-With which such pin coperates.

10. Incombination with a rotatable member of the engine to be started, a stationary the driving -its outer end cylindrical bearing, a driving Wheel mounted thereon for rotary and lateral axial movements and having a clutch face, and-a sleeve arranged Within and concentric of the bearing and secured to said member, such sleeve havin a complementary clutch face portion, said riving Wheel having a hub at Whose outer end its clutch face is located and said bearing having circumferential and inclined grooves, and means acting in cooperation with such grooves for automatically moving Wheel laterally consisting of a yielding pin mounted in said hub and extending therethrough into coperation With f the grooves.

11. In combination With a rotatable men]- ber of the engine to be started, a stationary cylindrical bearing, a driving Wheel mounted thereon for rotary and llateral axial movements and having a clutch face, and a sleeve arranged Within 'and concentric of the bearing and secured to said member, such sleeve having a complementary clutch face portion, said driving Wheel having a hub provided at with a marginal fiange on which its clutch face'is located, and said bearing having circumferential and inclined grooves, and means for automatically moving the driving Wheel laterally consisting of a yielding pin mounted in said hub and extending and secured to said member, such sleeve having ya complementary clutch face portion, said .driving Wheel having a hub at Whose outer end its clutch face is located and said bearing having circumferential and inclined grooves, and means acting in cooperation With such grooves for automatically moving the driving Wheel laterally consisting of a yielding pin mounted in said hub` and extending therethrough into coperation with the grooves, and a flat spring secured at one `end to the hub and bearing at its other end upon the pin.

13. In combination with a rotatable member of the engine to /be started, a rotatable driving member, a driven member rotatably connected with the engine member, said driving and driven members having complementary clutch elements and one of such members being movable for causing clutching relation between said driving member and driven member and thereby driving the engine, and a drivenwheel operatively connected with said driven member.

14. In combination with a rotatable member of the engine to be started, a rotatable driving member, a driven member rota- .ing therethrough into coperation with the Lig Lees tably connected 4with the engine member, said driving and driven members having complementary clutch elements and one of such members being movable Jfor causing clutching relation between said driving member and driven member and thereby driving the engine, and a driven Wheel in'- terlocked with said driven member.

l5. ln combination with a rotatable member of the engine to be started, a rotatable driving member, a driven member rotatably connected with the engine member, vsaid driving and driven members having complementary clutch elements and one ot such members being 'movable for causing clutching relation between said driving member and driven member and thereby driving the engine, and a pulley having a projecting portion interlocked With said driven member.

l5. in combination with a rotatable member of the engine to be started, a rotatable driving member, a driven member 'rotatably connected? with the engine member, said driving and driven members having compleinentary clutch elements and one of suo-- members being movable for causing clutching relation between said driving member and driven member and thereby driving the engine, and a pulley `svhose rim is d-shaped in cross-section, the shorter limb orn 'which is interloclred 1vitlisaid driven member.

17. combination with a rotatable ber of the engine to be started, a rotatable driving member, a driven member rotatably connected 'with the engine member, said driving and driven members having complementary clutch elements and one of such. members being movable for causii cinte irelation between said driving driven member.

18. ln combination With a rotatable member of the engine to be started, a rotatable driving member, a driven member rotatably connected with the engine member, said driving and driven members having complementary clutch elements and one of such members being movable for causing clutching relation betvveen said driving member and driven member and thereby driving the engine, a driven ivheel operatively connected with said driven member, and a series of springs interposed between.

19. ln combination Witha rotatable member of the engine to be started, a driving member mounted for rotary a d lateral axial movements and having a cltch face, a sleeve operatively connected with said engine member and in axial alinement with the driving member, such sleeve having a complementary clutch face, and a driven Wheel interlocked with said sleeve.

20. ln combination with a rotatable member of the engine tobe started, a driving member mounted for rotary and lateral axial movements and having a clutch tace, a sleeve operatively connected with said engine member and in axial alinement with the driving member, such sleeve having a com: plementary clutch in the form of a pulley interloclred with said lsleeve and having its rim overhanging said leeve and clutch tace of the driving memi er,

face, and a driven Wheell 

